the innermost or essential part of something
अंतरतम भाग
English Usage: The innards of the machine were difficult to access for repairs.
Hindi Usage: यंत्र के अंतरतम भागों तक पहुँच पाना मरम्मत के लिए मुश्किल था।
antaratam bhag, antartam bhag, antaratam bhaag, antar tam bhag, antar-tam bhag, antar tam bhaag